Hello everybody,
I'd like to fly the wonderful Turbine Mallard by Milton Shupe for the Bluegrass Airlines BCAR Rally starting soon. I did a few test flights but still don't know exactly how to handle the PT6 engines : the checklist and reference information included with the aircraft are not very clear to me and I couldn't find anything interesting on the web. Being a piston aircraft pilot, I don't know much about turboprops and would appreciate to fly it... "by the numbers".
Here is what I gathered from the aircraft's documents :
Take-off
- full power (100%) --> max 5 min.
- props full forward (100%) --> max 5 min.
Climb
- power 90%
- props rpm 95%
Cruise
- power "Set % TRQ as REDQ" ????? --> should give 190 KIAS at 6000 ft
- props rpm 90% --> should give 190 KIAS at 6000 ft
Economy cruise
- power 65% and rpm 65% --> with this setting, speed is rapidly decreasing to about 129 KIAS at 7000 ft
- EGT is 694 °C at 7000 ft
- fuel flow is 192 PPH at 7000 ft
Descent
- power "as required"
Approach
- power "as required"
- props full forward (100%)
- best glide speed ????
Landing
- Vref ???
Now, I also don't understand the difference between my throttle joystick (Saitek Throttle Quadrant) and the gauge indication :
- to get 65% engine torque (gauge), I must set my throttle control (joystick) at 44% ; or to get 90%, I must set 64% on my joystick
- to get 65% prop rpm (gauge), I must set my propeller control (joystick) at 29%
Condition levers : do they have to remain at 100% during all phases of flight, and taxi ?
That's it. Anybody wanting to share some knowledge on these issues ?
Thanks a lot in advance and a big thank you again to Milton Shupe for this great aircraft.
Raphael (LSGG)
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